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40th Anniversary, CUHK
Flower talks
Stream habitats

Rivers and streams are flowing-water ecosystems. These ecosystems are featured by the unidirectional flow of water from their sources (where they begin) to their mouths (where they enter into another water body). They are usually embedded in terrestrial landscapes and thus, cannot be isolated from the surroundings. As the types of land where water flows are very diverse, rivers and streams always exhibit great changes between their sources and mouths.


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